反应详情

2.1 g of 1-t-Butoxycarbonyl-4-(1-(4-fluorophenyl)-2-{4-[4-(2-methoxynaphthalen-1-yl)butyl]piperazin-1-yl}-2-oxoethyl)piperidine was dissolved in 10 ml of methanol, and 10 ml of 4M hydrogen chloride/1,4-dioxane solution was added, followed by stirring at room temperature for 2 hours. After concentration of the reaction solution under reduced pressure, to the residue was added ether, followed by stirring at room temperature. The precipitated crystals were filtered and washed with ether to give 1.7 g of 4-(1-(4-fluorophenyl)-2-{4-[4-(2-methoxynaphthalen-1-yl)butyl]piperazin-1-yl}-2-oxoethyl)piperidine dihydrochloride.

1. stirringby stirring at room temperature
2. filtrationThe precipitated crystals were filtered
3. washwashed with ether